Non-Selfadjoint Perturbations of Selfadjoint Operators in 2 Dimensions I
نویسندگان
چکیده
منابع مشابه
Non-selfadjoint Perturbations of Selfadjoint Operators in 2 Dimensions I
This is the first in a series of works devoted to small non-selfadjoint perturbations of selfadjoint h-pseudodifferential operators in dimension 2. In the present work we treat the case when the classical flow of the unperturbed part is periodic and the strength ǫ of the perturbation is ≫ h (or sometimes only ≫ h2) and bounded from above by hδ for some δ > 0. We get a complete asymptotic descri...
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This is the second in a series of works devoted to small non-selfadjoint perturbations of selfadjoint semiclassical pseudodifferential operators in dimension 2. As in our previous work, we consider the case when the classical flow of the unperturbed part is periodic. Under the assumption that the flow average of the leading perturbation vanishes identically, we show how to obtain a complete asy...
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ژورنال
عنوان ژورنال: Annales Henri Poincaré
سال: 2004
ISSN: 1424-0637,1424-0661
DOI: 10.1007/s00023-004-0160-1